Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'a1ce3ce09ab603e5c7677cf619d7ed1d7907e8a2c7aa0cbbef5341e7ddba7bb3' 
  AND token = 'eV0KrFTNBSNXnJMewObhw5FFhvPlxun1LwstTQDoUCw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}